Home / 21,423.35-29,542.52-16,514.88

Finding the Fourth Proportional to 21,423.35, 29,542.52 and 16,514.88

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Solution

The fourth proportional to 21,423.35, 29,542.52 and 16,514.88 is: 22,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.35 : 29,542.52 = 16,514.88 : x
  2. Step 2: Convert to fraction form
    21,423.35/29,542.52 = 16,514.88/x
  3. Step 3: Cross multiply
    21,423.35x = 29,542.52 × 16,514.88
  4. Step 4: Simplify right side
    21,423.35x = 487,891,090.12
  5. Step 5: Solve for x
    x = 487,891,090.12/21,423.35
  6. Step 6: Final answer
    x = 22,773.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.